50.63% is the change from 630 to 949
Calculation steps:
[( 949 - 630 ) ÷ 630] x 100 = 50.63%
Formula
Percentage change = [(949 - 630) / 630] x 100
Subtract the new number by the original number
949 - 630 = 319
319 ÷ 630 = 0.5063492063492063
0.5063492063492063 x 100 = 50.63%